With BSODs it's really crucial that you look at the important bits. The error message at the top (like IRQL_NOT_LESS_OR_EQUAL). And the filename / code somewhere near the bottom (like disp.sys). You can disregard the remainder of the text.
BSODs can be caused by any number of things, basically everything hardware and software related that's serious enough to **** up proper operation of the OS (but can just as often be easily fixed, drivers especially). Without the error message / filename / code, it can't be pin-pointed, and unless you KNOW it's your memory, that's all just guesswork. Not that it hurts to check it.